Pro's
This barrel system is probably one of the lowest cost out there that covers a wide range of ball sizes. The insert kit comes with 8 different sizes in the form of inserts. They range from .679 all the way to .695. The front's are interchangeable with the All-American also made by Smart Parts. Depending on what kind of game I play, I switch from a longer AA, to a shorter Freak front.

Con's
This barrel is quite heavy. It's nearly double the weight of my CP Pro 2-piece barrel. Even with the lighter aluminum back, it's still heavier than the CP by a good amount. The style for the front may look good, but the back needs some improvement. Without an o-ring by the threads where it screws onto the marker, the back usually comes loose, or gets stuck.

Conclusion:

This is a great barrel system for the money. If weight and overall style isn't a big factor, then it's a great barrel.